CN1174500C - Battery pack - Google Patents

Battery pack Download PDF

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Publication number
CN1174500C
CN1174500C CNB008001251A CN00800125A CN1174500C CN 1174500 C CN1174500 C CN 1174500C CN B008001251 A CNB008001251 A CN B008001251A CN 00800125 A CN00800125 A CN 00800125A CN 1174500 C CN1174500 C CN 1174500C
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CN
China
Prior art keywords
battery
packed cell
face lid
batteries
retention tab
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CNB008001251A
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Chinese (zh)
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CN1294761A (en
Inventor
青井隆幸
幸宏
乾武史
辅
五反田幸宏
枝
吉田大辅
岡崎孝枝
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Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
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Publication date
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Publication of CN1294761A publication Critical patent/CN1294761A/en
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Publication of CN1174500C publication Critical patent/CN1174500C/en
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M6/00—Primary cells; Manufacture thereof
    • H01M6/42—Grouping of primary cells into batteries
    • H01M6/44—Grouping of primary cells into batteries of tubular or cup-shaped cells
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
    • H01M50/207—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape
    • H01M50/213—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for cells having curved cross-section, e.g. round or elliptic

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Battery Mounting, Suspending (AREA)
  • Connection Of Batteries Or Terminals (AREA)

Abstract

A plurality of cells (43, 44) are disposed in close contact with each other with their longitudinal axes parallel to each other, and their electrode terminals that are juxtaposed at one end are electrically connected to each other with a connector piece (47). These cells thus joined together are inserted into and held within a frame body (20) formed in one-piece with a pair of end face covers (21, 22), connecting bar (23), and retaining piece (24), or alternatively, inserted into and held within a cell casing (31) having a pair of end face covers (32, 33), bottom wall (34), and partition boss (38) formed integrally therewith.

Description

Battery pack
Technical field
The present invention relates to packed cell, wherein a plurality of single batteries are combined and link together, so that they can be used as and have reservation shape and each and use the single battery of required given voltage and be held use easilier.
Background technology
Battery has according to battery types and different particular voltage value.Similarly, the size of battery with and discharging current numerical value and capacitance all determine for every type battery.But the battery that can buy on the required voltage and current numerical value of a given application and the market does not usually conform to.Therefore, common way is that form with serial or parallel connection connects a plurality of batteries to obtain the voltage and current of required numerical value.
As mentioned above, be used to simplify grip a plurality of batteries that are used in combination and the packed cell of releasing by a plurality of batteries are connected into predetermined shape and can make a plurality of batteries to use as single battery according to various application, and it has been widely adopted in recent years.Such packed cell is disclosed in the disclosed 10-69892 patent application of Japanese unexamined for example.
Figure 23 is the exploded perspective view of such packed cell.Two batteries 1,2 for example nickel-cadmium cell are arranged to closely contact each other, and their longitudinal axis is parallel to each other, and their positive pole and negative terminals are arranged to toward each other.Positive terminal and the negative terminals located adjacent one another at an end of battery 1,2 have been electrically connected a positive temperature coefficient (PTC) element 3, and I/ O terminals 4,7 are connected to and put positive terminal and negative terminals at the other end of battery 1,2.The battery that links together 1,2 is combined into one by framework 10, and framework 10 comprises a upper head plate 8 and a bottom plate 9.Promptly, by the two ends that make each holding plate 11,12 longitudinally contact two batteries 1,2 end of the supporting slice 13,14 that is separately positioned in couples on the two end plates 8,9 is leaned each other mutually, this of two pairs of supporting slices 13,14 leans part and links together by ultrasonic bonding.Two batteries 1,2 are sandwiched between two holding plates 11,12 of framework 10 of one thus.
The I/ O terminals 4,7 that are connected to the battery 1,2 of each combination are exposed to the outside by the opening 17,18 that is formed in the upper head plate 8, to be electrically connected external terminal.Then a label film 19 is held and is bonded on the periphery of each battery 1,2 of combining by framework 10, finished this packed cell thus.Compare with the packed cell that only is covered with a label that is made of a heat shrinkable synthetic resin sleeve pipe that has the wire connector that is connected on the battery, the packed cell of said structure has higher vibration resistance or resistance to impact.In addition, its advantage of comparing with the packed cell in being contained in the synthetic resin housing is that volume is little, in light weight and price is low.
But above-mentioned packed cell has a large amount of members, and its assembling comprises complicated process, for example will lean each end to supporting slice 13,14 in the end plate 8,9 up and down separately that is formed on framework 10, and will fetch with supersonic welding they are welded.Number of assembling steps is more, and cost is also corresponding higher.In addition, under the length or the vicissitudinous situation of other features of each supporting slice 13,14 in above-mentioned packed cell, these supporting slices 13,14 will be connected to each other under the state of misalignment.If this situation, two batteries 1,2 are combined at predetermined relative location on non-loosening ground betwixt.The output of packed cell can reduce thus.
Except that above, above-mentioned packed cell has following shortcoming.As long as above-mentioned packed cell only is applied to a kind of specific purposes, wherein need the quantity of the battery 1,2 that connects and the mode that they are combined to be confined to one type packed cell, that is any inconvenience not to take place.But, make and sell and have identical appearance but polytype packed cell of different size, for example output voltage if connect two lithium batteries by serial or parallel connection, will produce provides in order to feature that identifies a kind of type cell and the needs that prevent to misapply packed cell.Above-mentioned packed cell prevents miscellaneous any consideration not making aspect this.
Under the situation of produce and market polytype packed cell, need indicate different specifications, the output voltage of for example battery by some feature or mark.And, this packed cell should have such as can prevent that the user from misapplying the packed cell of wrong specification or such as making the user recognize mistake immediately so that the structure of using the electrical equipment of this packed cell can not be damaged.
Specifically, if be used as power supply and use in an electrical equipment because wrong and packed cell that will become 6V output voltage specification by the lithium batteries of the two joint 3V terminal voltage of connecting is used as the packed cell that becomes 3V output voltage specification by batteries in parallel connection, this electrical equipment will be easy to damage.Therefore this packed cell must be provided with and can prevent the structure of misuse so forever.On the other hand, if the packed cell of 3V output voltage is used in the electrical equipment that needs 6V voltage as power supply, this electrical equipment can not be finished its function fully so, therefore, this packed cell must have can make the user recognize this battery types Characteristics of Fault, and should not be used for the electrical equipment that the user will use.
Summary of the invention
At above-mentioned the problems of the prior art, an object of the present invention is to provide a kind of packed cell, it can manufacture predetermined shape, by the number of minimizing member and the number of assembly technology step, can obtain higher output under lower cost, simultaneously it also is provided with the feature in order to the reverse connection of the misuse of the packed cell that prevents different size or packed cell.
In order to reach above purpose, the invention provides a kind of packed cell, this packed cell is with the series connection of a plurality of batteries or is connected in parallel and fixing all-in-one-piece, it is parallel to each other that this battery is configured to their axis, located adjacent one another or the contact of their outer surface, and each at least at one end adjacent electrode terminal is electrically connected with brace, under this state, remain in the battery case, this battery case has: the pair of end cover, and this opposite end cover covers the whole surface of the end face at adjacent cell two ends respectively; At least one connecting portion, this connecting portion connects pair of end cover respect to one another with the distance corresponding to battery length, this battery is vertically held by the end face lid at it and is clamped, clamp in its transverse end portion of being connected, be maintained in the battery case thus, one outer label thermo-responsive or thermal contraction is reeled and is bonded on the outer surface of battery case and each battery, its characteristics are: the pair of end cover and the connecting portion of battery case are integrally formed, the shape of one of them end face lid ovalisation or alphabetical D, another end face lid then becomes the shape of letter b, and having a corresponding to recess of profile with each end face of battery, this recess has the degree of depth that the output voltage specification according to packed cell changes.
In this packed cell, because framework is integrally formed, compare with the framework of traditional packed cell, reduced the quantity of member.And, the elasticity that a plurality of batteries that link together can utilize end face lid and be arranged on retention tab there is installed in the framework by single operating of contacts, promptly, because do not need complicated step, the welding when for example locating two batteries, thereby reduced the number of installation step, therefore reduced production cost.And because framework is integrally molded, and by molded its structure that as one man forms, therefore not as by connecting the conventional frame that a plurality of members assemble, it can the recurring structure distortion.Therefore each battery can be clamped in preposition relative to each other, and does not link together loosely in framework, can increase the output of packed cell thus.
Preferably, first end face lid has a thin portion, and the brace that is connected in battery one end can be installed in the thin portion, and second end face lid has a plurality of Wiring ports, so that the electrode terminal of battery is exposed to the outside.In addition, connecting rod and retention tab all have one can make them fit in transversal in the cavity between the juxtaposed battery and, the length of retention tab is 1/3 to 1/2 of connecting rod.By this thin portion, first end face lid presents elasticity and retention tab easily is out of shape, and each battery that is thus connected together can be installed in the framework smoothly.
Preferably, first end face lid forms oval, and second end face lid forms the roughly shape of letter b, second end face covers the corresponding to recess of profile of an end of the battery that has and link together, and this recess should have a degree of depth that changes according to the output voltage specification of packed cell.Thus by provide with end face lid in the respective track that is complementary of concave depth prevent to misapply the packed cell of different size, this guide rail is formed in the battery case of the electrical equipment that uses packed cell.For example, can prevent because of the misuse of 6V packed cell is caused damaging the such trouble of electrical equipment in the electrical equipment that needs the 3V driving power.
In above-mentioned packed cell, retention tab has a length that changes according to the output voltage specification of packed cell.The respective track that the battery case of the electrical equipment by give using packed cell provides the length with retention tab to be complementary, retention tab can prevent to insert wrong packed cell by the guide rail end that leans in the battery case.
Above-mentioned packed cell can be configured to and make all batteries be arranged to identical direction, their positive terminal is also put together and by being welded on the positive strap electric interconnection on the positive terminal, their negative terminals is by being welded on a negative pole brace electric interconnection of negative terminals, one insulating tape is attached on the middle brace, one positive terminal sheet is electrically connected in positive strap, a negative terminals sheet that has with positive terminal sheet same thickness is electrically connected in the negative pole brace by a cross tie part, and positive terminal sheet and negative terminals sheet are bonded on the insulating tape that is attached in the positive strap.Arrange that for this when all batteries were arranged on equidirectional and parallel connection, the positive terminal of battery and negative terminals can be arranged on the same plane at battery one end place.Because this structure qualification the direction of inserting, so for the packed cell of parallel connection, the user can be easily with packed cell accent itself individual to.
Specifically, the positive terminal sheet is formed in the positive strap, and can be with respect to the positive strap bending, and the negative terminals sheet interrelates by cross tie part and negative pole brace, cross tie part vertically extends from the negative pole brace, and the negative terminals sheet is formed on the end of cross tie part, so that there is crooked relatively.Positive terminal sheet and negative terminals sheet are crooked respectively, can be bonded on the insulating tape that is attached to positive strap.Battery parallel connection and positive pole and the negative terminals packed cell that is arranged on the same side just can use the member that reduces quantity to assemble thus.
Preferably, on the both sides of insulating tape, be applied with adhesive in advance, so the precalculated position can easily be located and be bonded in to two wiring end sheets.
Also above-mentioned packed cell can be configured to makes battery be arranged on opposite direction.In this case, the brace of positive terminal connector is welded on respectively on each positive terminal of battery, to be electrically connected them.These braces are arranged on the both ends of an interconnection line that is electrically connected with it.Simultaneously, a negative terminals connector is welded on the both ends of the negative terminals of each battery.Therefore, when battery was arranged on opposite direction and parallel connection, the positive terminal of battery and negative terminals can be arranged on the same plane at battery one end place.Because this structure qualification the direction of inserting, so for the packed cell of parallel connection, the user can be easily with packed cell accent itself individual to.
Above-mentioned packed cell can also be configured to and make each battery not cover outer tube, and the both ends of negative terminals connector are welded on the outer surface of battery container of each battery.Therefore, the uncompleted battery that can be used in the common battery production process is produced packed cell, has further reduced cost thus.
In above-mentioned packed cell, an outer label thermo-responsive or thermal contraction can be reeled and be bonded on the whole outer surface of battery except the part of end to the second end face lid of the retention tab from first end face lid and framework.Being formed on the guide rail that a indenture between the adjacent cell can be used in the battery case with electrical equipment combines as the feature of difference different size packed cell, promptly, guide rail is directed along the indenture that is formed between the battery, and prevents to insert wrong battery by the end that leans retention tab.
Above-mentioned packed cell can also be configured to first supporting slice of the end of the retention tab that this framework is had be formed on first end face lid, first supporting slice is step-like and thinner than retention tab, to fit in the cavity between the adjacent cell.Relative first supporting slice of other one second supporting slice is formed on second end face and covers, to fit in the cavity between the adjacent cell.One outer label thermo-responsive or thermal contraction is reeled and is bonded on the whole outer surface of battery and framework.Outer label is formed with slit so that the profile of it and battery adapts, and make with the part of end to the second end face lid of the retention tab from first end face lid of battery corresponding outside the part of label supported by first supporting slice and second supporting slice.Battery and framework can be by reeling its whole outer surface with outer label and linking together securely, and an indenture can be formed between first and second supporting slices, can distinguish the packed cell of different size thus.
In addition, first of the heat-shrinkage material outer label can be reeled and be bonded on battery and the outer surface of framework except the part of end to the second end face lid of the retention tab from first end face lid; The second outer label of non-heat-shrinkage material can be reeled and be bonded on this part of end to the second end face lid of the retention tab from first end face lid.Therefore, though since in high temperature air outside second label can not be out of shape yet, so can keep being formed on the indenture of the second outer label adhesion section.Except more than, if adopt the predetermined shrinkable material of temperature as second outside label, it can be used as the temperature sensor of packed cell so, the detectable thus packed cell that has been placed in the predetermined temperature environment.
Packed cell according to a second aspect of the present invention comprises a plurality of batteries, these a plurality of batteries link together with the serial or parallel connection form, and the axis that is configured to them is parallel to each other, located adjacent one another or the contact of their outer surface, and their juxtaposed electrode terminal are connected to each other at an end that has brace at least.The battery container that described battery is installed in it has: a pair of first and second end faces lid, and this opposite end cover covers the whole surface of the end face at adjacent cell two ends respectively; One diapire, it is used for connecting described pair of end cover respect to one another with the distance with respect to battery length; And one separate protuberance, and it is vertically outstanding on diapire along it, and all end face lids, diapire and separation protuberance are integrally formed.Each battery is placed on the diapire along separating protuberance, and is clamped by the end face lid at its vertical end, is maintained in the battery container thus.
In this packed cell,, compare with traditional packed cell and to have reduced the number of components because battery container is integrally formed.In addition, a plurality of batteries that link together can reduce the quantity of installation step simply by they are installed in the battery container from top insertion, have therefore reduced production cost.And because battery container is integrally molded, and by molded its structure that as one man forms, therefore not as by connecting the conventional frame that a plurality of members assemble, it can the recurring structure distortion.Therefore each battery can be clamped in preposition relative to each other, and does not link together loosely in battery container, can increase the output of packed cell thus.
Second end face lid of above-mentioned packed cell should preferably have a plurality of Wiring ports, so that the electrode terminal of battery is exposed to the outside, separate protuberance and should preferably have and can make it fit in a plane of structure in the cavity between the juxtaposed battery, a plurality of thus batteries can stably be clamped in the battery container.
Above-mentioned packed cell can be configured to and make second end face lid form the roughly shape of letter b, it has the corresponding to recess of profile with an end of the battery that links together, this recess has a degree of depth that changes according to the output voltage specification of packed cell, and first end face lid forms the roughly shape of alphabetical D, the two ends cover has a straight sides, they are connected to each other by diapire at this, and the straight sides of described end face lid is formed with square protuberance at its two ends.By being complementary with concave depth and being arranged on combining of corresponding guide rail and this recess in the battery case of the electrical equipment that uses this packed cell, can prevent to misapply the packed cell of mistake.The opening shape of the battery patchhole by making battery case is consistent with the square protuberance of end face lid, can prevent to misapply wrong battery definitely.
Also above-mentioned packed cell can be configured to makes each battery be arranged to opposite direction, the end that identical shaped circular wiring end plate is welded in respectively at battery departs from the juxtaposed each other electrode terminal in position at battery center, and in the juxtaposed each other electrode terminal of the other end of battery by being welded on brace electric interconnection there, second end face of battery container lid has at the formed non-circular Wiring port in position of each circular wiring end plate relatively.Use identical wiring end plate can reduce material cost with negative terminals in the packed cell of making series connection the positive pole of battery, and increase the speed of welding operation, this is because circular wiring end plate need not located on specific direction.
In above-mentioned packed cell, a shim is formed between the Wiring port, can prevent from thus in the manufacture process to cause adjacent wiring end plate or electrode connection terminal shortcircuit because of sheet metal or analog.
Above-mentioned packed cell can also be used a following structure, and in this structure, an outer label thermo-responsive or thermal contraction is reeled and is bonded on the whole outer surface of battery and battery container, and battery and battery container can link together securely thus.
Description of drawings
Fig. 1 is the stereogram that is illustrated in a framework used the packed cell according to the first embodiment of the present invention from the one end;
Fig. 2 is the stereogram that same framework is shown from its other end;
Fig. 3 is the stereogram that is illustrated in a battery container used the packed cell according to the second embodiment of the present invention from the one end;
Fig. 4 is the stereogram that the packed cell manufacturing technology steps of first embodiment is shown;
Fig. 5 is the stereogram that the packed cell of making by processing step shown in Figure 4 is shown;
Fig. 6 A-6D is respectively vertical view, front view, left view and the right view of above packed cell;
Fig. 7 A and 7B are illustrated in respectively to make the left view that is provided with the dissimilar packed cells that prevent to misapply feature in the different size packed cell process;
Fig. 8 is the stereogram that illustrates according to a packed cell of second embodiment of the invention;
Fig. 9 illustrates according to the third embodiment of the present invention in order to connect and to fix the stereogram of first structure of two cylinder bodily form batteries in parallel in packed cell;
Figure 10 A-10I illustrates to use structure shown in Figure 9 two cylinder bodily form batteries of series connection to be fixed on the schematic diagram of the processing step at predetermined relative positions place;
Figure 11 illustrates according to the third embodiment of the present invention in order to connect and to fix the stereogram of second structure of two cylinder bodily form batteries in parallel in packed cell;
Figure 12 illustrates according to the third embodiment of the present invention in order to connect and to fix the stereogram of the 3rd structure of two cylinder bodily form batteries in parallel in packed cell;
Figure 13 be illustrated in the third embodiment of the present invention hold parallel connection with an outer label and be installed in two cylinder bodily form batteries in the framework the stereogram of processing step;
Figure 14 A is a sectional arrangement drawing, and Figure 14 B is the profile at XIVB-XIVB place in Figure 14 A, and Figure 14 C is the profile at XIVC-XIVC place in Figure 14 A, and they show the packed cell according to the third embodiment of the present invention;
Figure 15 is the stereogram that above packed cell and battery case are shown;
Figure 16 is the stereogram that is illustrated in the manufacturing technology steps according to a remodeling example of the packed cell of the 3rd embodiment;
Figure 17 is the profile along the transverse direction of packed cell shown in Figure 16;
Figure 18 is the stereogram that is illustrated in a battery container used the packed cell according to the fourth embodiment of the present invention from the one end;
Figure 19 is the stereogram that battery container shown in Figure 180 is shown from the other end;
Figure 20 illustrates the stereogram of manufacturing technology steps that uses the packed cell of battery container shown in Figure 180 according to the 4th embodiment;
Figure 21 is the end view that packed cell shown in Figure 20 is shown;
Figure 22 is the stereogram that a packed cell shown in Figure 20 and a battery case are shown;
Figure 23 is the exploded perspective view of a traditional packed cell.
Embodiment
Below in conjunction with accompanying drawing preferred embodiment of the present invention is described.Fig. 1 is the stereogram that a framework 20 is shown from the one end, and this framework 20 is used for the packed cell according to the first embodiment of the present invention, and Fig. 2 is the stereogram that same framework 20 is shown from its other end.This framework 20 comprises it all being with integrally formed first and second end faces lid 21,22, one connecting rod 23 of for example ABS resin and a retention tab 24.
First end face lid 21 is made elliptical shape, so when two adjacent cylinder shape batteries (not shown) closely contacted each other and be arranged in parallel, end face lid 21 can cover their two end faces.First end face lid 21 is vertically covering the thin portion 27 that is formed with essentially rectangular on 22 facing surfaces with second end face along it.Cover 21 similarly to first end face, second end face lid 22 also has the shape of the end face that can cover two adjacent cylinder shape batteries, but forms the shape that is roughly letter b.That is, one of them longer side (upside among the figure) and two shorter sides all form the identical shape of shape with the end face of two cylinder bodily form batteries.The longer side in top has a recess 30, and another longer side forms linear pattern.Pair of terminals mouth 28,29 is formed in second end face lid 22, so that the electrode terminal of two cylinder bodily form batteries is exposed to the outside.
Connecting rod 23 is at the middle part of the longer side of the first and second relative end caps 21,22, couple together them with the corresponding distance of length with cylinder bodily form battery.Connecting rod 23 has roughly trapezoidal cross section, so it can be fitted in the formed cavity of outer peripheral edges of the two cylinder bodily form batteries that closely contact each other.Retention tab 24 from the middle part of first end face lid 21, outstanding in the top longer side relative with connecting rod 23, and extend with connecting rod 23 with paralleling.The length of retention tab 24 approximately be between the two ends cover 21,22 distance 1/3rd, its cross section is roughly trapezoidal, thus retention tab 24 can be fitted to two closely the cylinder bodily form batteries of contact in the cavity that the opposition side of connecting rod 23 forms.
Fig. 3 is the stereogram that a battery container 31 is shown from the one end, and this battery container 31 is used for the packed cell according to the second embodiment of the present invention.It all is to separate protuberance 38 and sidewall 37 with integrally formed first and second end faces lid, 32 and 33, one diapire 34, of for example ABS resin that battery container 31 has, and their shape can make two cylinder bodily form battery accommodatings within it.
Diapire 34 has length and width so that two be arranged in parallel and closely the contact cylinder bodily form battery can be placed on it.This diapire 34 vertically in the middle part, the separation protuberance 38 of similar guide rail longitudinally projects upwards.Separate protuberance 38 and have a trapezoidal cross section, so it can be fitted to the two cylinder bodily form batteries that closely contact in the cavity that downside forms.Therefore two cylinder bodily form batteries are bearing in both sides respectively by separating protuberance 38 and two side 37.
First end face lid 32 roughly forms the shape of alphabetical D, so it can cover each other closely two end faces of contact and juxtaposed two adjacent cylinder shape batteries.In addition, the shape of the one longer side (upside among the figure) of second end face lid 33 is consistent with the profile of two cylinder bodily form batteries, the electrode terminal of two cylinder bodily form batteries is formed with a recess 35 in the middle, and also has pair of terminals mouth 39 and 40, so that can be exposed to the outside.The end face of the framework 20 of first embodiment lid 21 and 22 at the two ends of the longer side in bottom along a circular arc bending, and the end face of this battery container 31 lid 32 and 33 is formed with square rim 41 and 42, and edge 41 and 42 is outstanding at their place, two ends of the longer side in linear bottom respectively.
Below the step of the manufacturing process of first embodiment that is illustrated in the packed cell that has framework 20 among Fig. 1 and Fig. 2 will be described referring to Fig. 4.In this packed cell, series connection of two batteries and use framework 20 are fixed together.At first, be arranged side by side two as the cylinder bodily form lithium battery 43 of AA size and 44, leave tiny gap therebetween, their longitudinal axis is parallel to each other, and their electrode terminal is arranged to toward each other, so their both ends of the surface are positioned on the same plane (S1).The two ends of one electrode connecting piece 47 are connected in and put positive pole and the negative terminals at two batteries 43 and 44 1 ends, and use welding rod 48 by spot-welded at there.Therefore, two batteries 43 and 44 adjacent positive pole and negative terminals electric interconnection (S2).
After this, a spot of instantaneous adhesive 50 is dropped in the relative part 49 of battery 43 and 44 outer peripheral edges, locate so that two batteries can be fixed on predetermined relative positions (S3).Then be installed in (S4) the framework 20 by insert it into the battery 43 and 44 that between connecting rod 23 and retention tab 24, will cement in together from this end that is connected with electrode connecting piece 47.At this moment, when two batteries were inserted into, they upwards promoted retention tab 24, cause first end face lid 21 in its thin portion 27 to the avris warpage, retention tab 24 is distortion a little upwards.Therefore battery 43 and 44 can be fixed between the end face lid 21 and 22 reposefully.When battery was installed in the framework 20, electrode connecting piece 47 was fixed in the thin portion 27 of first end face lid 21, and had in the retention tab 24 of trapezoid cross section and the formed gap 49 up and down of outer peripheral edges that connecting rod 23 is separately fixed at two batteries 43 and 44.Therefore, battery 43 and 44 is sandwiched between connecting rod 23 and the retention tab 24 from both sides up and down, and the pre-position respect to one another that is clamped in thus in the framework 20 is clamped in the framework 20.
Because framework 20 forms an integral body, so compare with conventional frame 10 shown in Figure 23, its number of components is wanted much less.And battery 43 and 44 can utilize the elasticity of first end face lid 21 and retention tab 24 to be installed in the framework 20 by single operating of contacts, does not need complicated technical process for example to weld with battery in place the time.In addition, also can reduce the number of installation step, therefore can reduce production cost.Framework 20 usefulness molded of resin material are integral, by molded its structure that as one man forms.Therefore, do not resemble, in this structure, can not deform by connecting the conventional frame 10 that two members assemble.Two batteries 43 and 44 appointed positions can be clamped in relative to each other thus and in this framework and do not link together loosely, the output of packed cell can be increased thus.
Then, an outer label 51 of non-conductive resin film manufacturing is heated with about 90 ° low temperature, present viscosity so that be applied to the adhesive on a surface of this label in advance.The framework 20 that two batteries 43 and 44 are installed is placed on a given position (S5) at the middle part of outer label 51, reel from the both sides outer peripheral edges (S6) of two batteries 43 and 44 of outer label 51.
Step S5 from figure as can be seen, outer label 51 has a length longer slightly than the length of framework 20, and form a square convex shape, wherein have the width wideer than another part from first end face lid 21 to retention tab 24 with the corresponding part of this part of framework 20.The framework 20 that battery 43 and 44 are installed in it is placed on the outer label 51, and roughly the same length is extended from two ends cover 21 and 22 in the both ends of label.When outer label 51 coiling frameworks 20, step S6 from figure as can be seen, the two ends of outer label 51 are from the outstanding certain length in the two ends of end face lid 21 and 22, whole periphery from first end face lid 21 to this part of the end of retention tab 24 is folded with outer label 51, and the part of this part from second end face lid 22 to the end of retention tab 24 is exposed to the outside.
Then, longitudinally and laterally all shrink thus, so that the periphery of its outstanding edge and end face lid 21 and 22 closely cooperates with the outer label 51 of about 180 ° heat.Outer thus label 51 with battery 43 and 44 and framework 20 link together securely, thereby finish packed cell 52.Fig. 5 shows the stereogram of the packed cell of making by above processing step 52, and Fig. 6 A-6D is vertical view, front view, left view and the right view of this packed cell 52.This packed cell 52 comprises two cylinder bodily form batteries 43 and 44 by electrode connecting piece 47 series connection.The negative pole of the positive pole of one batteries 43 and another battery 44 is exposed to the outside by the Wiring port 28,29 in second end face lid 22 respectively, can connect the terminals of an electrical equipment that uses packed cell.
If use the cylinder bodily form battery of two 1.5V, will have the voltage output of 3V by the packed cell 52 of above-mentioned body plan, if use the battery of two 3V output voltages, will have the output voltage of 6V so.When the packed cell of the multiple different output voltage specifications of produce and market, must provide a feature to prevent to misapply the packed cell of type of error.Can easily on above-mentioned packed cell 52, provide this feature.
Fig. 7 A and 7B show the packed cell 52A of 3V output voltage and the packed cell 52B of 6V output voltage respectively, and they all are to make by above-mentioned processing step in conjunction with Fig. 4.They all have identical height H, and the recess 30 in second end face lid 22 of 3V packed cell 52A has for example degree of depth h1 of 4mm, and the recess 30 of 6V packed cell has for example degree of depth h2 of 2mm.
Simultaneously, use the electrical equipment of each packed cell 52A, 52B to have the battery case that its inside is provided with guide rail, the cross sectional shape of guide rail conforms to the recess 30 of second end face lid of each packed cell 52A, 52B.That is, battery case portion within it has each guide rail, and the cross sectional shape of guide rail is that the recess 30 of h1 and h2 adapts with the degree of depth respectively.Therefore, if having the packed cell 52B of 6V output voltage is inserted into mistakenly and is needed in the electrical equipment of 3V packed cell 52A as power supply, second end face lid 22 that has the recess 30 of 2mm degree of depth h2 leans the guide rail of battery case inside, this guide rail has the cross section of outstanding 4mm thickness, can prevent that thus packed cell 52B is inserted in the battery case fully.Therefore a packed cell of 6V output voltage can not be installed in the electrical equipment that needs the 3V driven, the user can easily recognize mistake, stops immediately attempting installing.Can prevent to cause the damage of electrical equipment definitely because of misuse 6V packed cell 52B.
But, prevent from still the packed cell 52A of 3V output voltage to be installed to the above-mentioned feature of misapplying in the electrical equipment that needs the 6V power supply though have different-thickness by recess 30.In this case, electrical equipment can not be finished its function fully.The length of retention tab 24 that can be by changing above-mentioned packed cell 52 both ways solves this problem.The framework 20 of the packed cell 52A of 3V output voltage can be provided with for example retention tab 24 of 23mm length, and the framework 20 of the packed cell 52B of 6V output voltage can be provided with for example short slightly retention tab 24 of 20mm.In this case, 51 pairs on outer label should form square convex shape in the length of each retention tab 24 respectively, so that it can hold whole retention tab 24.Therefore resulting packed cell 52A, 52B have the part that label 51 different length, outer does not hold battery 43,44.
Simultaneously, use the electrical equipment of each packed cell 52A, 52B to have respectively the battery case that portion within it is provided with guide rail, the cross sectional shape of guide rail can make it be installed in the gap between two batteries 43 and 44, so when packed cell is inserted in the battery case fully, the retention tab 24 of guide rail contact packed cell 52A or 52B.Therefore, if having the packed cell 52A of 3V output voltage is inserted into mistakenly and needs in the electrical equipment of 6V packed cell 52B as power supply, the guide rail of battery case inside at first is installed in the gap between the battery 43,44, and guiding packed cell, but when the end of guide rail withstands retention tab 24, can stop the further insertion of packed cell 52A, prevent that thus packed cell 52A is inserted in the battery case fully.The packed cell that therefore can not will have the 3V output voltage is inserted in the electrical equipment that needs the 6V power drives, and the user can easily recognize mistake, stops to attempt installation immediately.Therefore can prevent the fault of electrical equipment.
Because battery case usually within it an end of portion be provided with the contact terminals, unless packed cell 52A or 52B insert from this side with pair of terminals mouth 28,29 of second end face lid 22, otherwise it can not be connected in electrical equipment.Above-mentioned packed cell 52A or 52B do not allow self to insert from opposition side, because its first end face lid 21 is not provided with recess 30.That is, packed cell 52A or 52 B also have the feature that prevents reverse insertion.
Fig. 8 shows the stereogram of a packed cell 53 of the second embodiment of the present invention that is made of battery container shown in Figure 3 31.This packed cell 53 is by making with similar processing step shown in Figure 4.The difference that only has of processing step is: the step 4 in Fig. 4 (S4), be not to be inserted between the connecting rod 23 and retention tab 24 of the framework 20 among first embodiment with the battery 43,44 that predetermined location relationship links together, but battery 43,44 is inserted into respectively by separating in protuberance 38, diapire 34 and side walls 37 formed two cavitys.This packed cell 53 comprises similarly two batteries 43,44 that the packed cell 52 with first embodiment is connected together.
Because the battery container 31 of this packed cell 53 is integrally formed, therefore to compare with traditional packed cell, its number of components is wanted much less.And, can be by battery 43,44 be installed in the battery container 31 easily from top insertion.Installation step can be reduced, production cost can be reduced thus.In addition, battery container 31 is to be molded into a monoblock resin material, and its planform as one man forms by molded.Therefore, not as by connecting the conventional frame 10 of two members assemblings, it can the recurring structure distortion.Two batteries 43,44 can be clamped in appointed positions toward each other and link together loosely in battery container and not, can increase the output of packed cell thus.
The different output voltage specifications of above-mentioned packed cell 53 can be discerned by the degree of depth that changes the recess 35 in second end face lid 33.And this packed cell 53 can make a distinction by the existence and the packed cell 52 of square rim 41,42.Promptly, by making a kind of packed cell of specification and make another specification, can prevent to misapply the packed cell of wrong output voltage specification more definitely with another form among first and second embodiment with one of them form of first and second embodiment of the present invention.
Below in conjunction with Fig. 9 to Figure 15 a packed cell according to third embodiment of the invention is described again.Above-mentioned packed cell 52,53 according to first and second embodiment comprises two series connected battery 43,44, wherein can be easily positioned on the same plane of battery one end in order to positive pole and the negative terminals that is electrically connected with electrical equipment.Packed cell according to the 3rd embodiment comprises two cylinder bodily form batteries in parallel, also allows positive pole and negative terminals to be provided with at grade, so that the user can easily exchange packed cell contiguously.That is, the actual packed cell that does not adopt the positive pole that will be connected and negative terminals to be arranged on the packed cell end opposite with electrical equipment, this is because the installation of this packed cell is comparatively complicated, and may be inserted mistakenly.
Fig. 9 is the stereogram according to the packed cell of the 3rd embodiment, show in order to fix first kind of structure of two cylinder bodily form batteries 43,44, two cylinder bodily form batteries the 43, the 44th, in parallel and be arranged on preposition relative to each other, make anodal and negative terminals and putting on the same plane of battery one end.Should fixingly comprise an anodal connecting terminal plate 54, a negative pole connecting terminal plate 57 and an insulating tape 58 with bindiny mechanism.
This positive pole connecting terminal plate 54 comprises a rectangle brace 54a, in order to be electrically connected positive terminal 43a, the 44a of two cylinder bodily form batteries in parallel, their positive terminal 43a, 44a and negative terminals 43b, 44b are arranged on equidirectional, also comprise general square shape and from the vertically extending wiring end sheet 54b of the end of brace 54a.Negative pole connecting terminal plate 57 comprises a rectangle brace 57a in order to negative terminals 43b, the 44b that is electrically connected two tubular batteries 43,44, from the vertically extending sheet of interconnect 57b of the middle side part of brace 57a and from the vertically extending wiring end sheet 57c of the end of sheet of interconnect 57b.The thickness that anodal connecting terminal plate 54 and negative pole connecting terminal plate 57 have identical unanimity, this thickness preferably is set to about 0.1mm to 0.2mm.
Insulating tape 58 is two-sided adhesive tapes, and wherein an adhesive has been applied to the two sides of a belt, and this belt is that for example PTE or PE make for the resin that transmits with non-conductive and nonionic.The thickness of insulating tape 58 preferably is 0.1mm to 0.2mm.Other materials outside PET or the PE also can be used as insulating tape 58, as long as it does not allow ion to transmit, but can cause except the paper that ion moves.
Describe above-mentioned positive pole of employing and negative pole connecting terminal plate 54,57 and insulating tape 58 below in conjunction with Figure 10 A-10I and fix two processing steps that are set parallel to each other at the cylinder bodily form battery 43,44 in precalculated position.Shown in the vertical view and front view of Figure 10 A and 10B, two cylinder bodily form batteries 43,44 are arranged to identical direction, their longitudinal axis is parallel to each other, their positive terminal 43a, 44a lays respectively on the identical plane with negative terminals 43b, 44b, can use anchor clamps according to need.
The brace 54a of anodal connecting terminal plate 54 is positioned and is placed on positive terminal 43a, the 44a as the battery 43,44 of above-mentioned setting, and two positions that are welded in each positive terminal 43a, 44a such as the welding rod 48,48 of inverse type contact resistance welding machine (inverter-type resistance welder) are respectively used at the two ends of brace 54a.Then, shown in the front view and rearview of Figure 10 C and Figure 10 D, negative terminals 43b, the 44b of relative two batteries 43,44 of the brace 57a of negative pole connecting terminal plate 57 locatees and is connected there, and the two ends of brace 57b are welded in two positions of negative terminals 43b, 44b respectively with welding receiving electrode 48,48.Under the situation of not using any adhesive or analog that two batteries 43,44 are in parallel and be fixed into preposition relation toward each other thus.
After this, shown in the partial front elevation view of Figure 10 E, insulating tape 58 is attached to the upper surface of the brace 54a of anodal connecting terminal plate 54.Therefore, shown in Figure 10 A, the vestige 59 of spot welding has been stayed that brace 54a goes up or with insulating tape 58 leg has been covered.Need not cover for 60 of the spot welding vestiges on the brace 57a of negative pole connecting terminal plate 57, because after in being assembled into a packed cell, they are not exposed to the outside.
Then, shown in the vertical view and partial front elevation view of Figure 10 F and 10G, the relative sheet of interconnect 57b of wiring end sheet 57c of negative pole connecting terminal plate 57 curves the right angle, and is fixed on the insulating tape 58.And shown in the vertical view and partial front elevation view of Figure 10 H and Figure 10 I, the relative brace 54a of the wiring end sheet 54b of anodal connecting terminal plate 54 becomes the right angle and is fixed on the insulating tape 58.
When bending two wiring end sheet 54b, 57c, because the wiring end sheet 57c of negative pole connecting terminal plate 57 is fixing from the sheet of interconnect 57b extension and the anodal relatively connecting terminal plate 54 that are positioned at two positive terminal 43a, 44a middle part, so it before the wiring end sheet 54b of the anodal connecting terminal plate 54 of bending, is bent and is fixed on a side (right-hand side among the figure) of insulating tape 58.Therefore, can prevent positive pole and negative terminals sheet 54b, the short circuit of 57c in manufacturing technology steps.Although negative pole connecting terminal plate 57 be by sheet of interconnect 57b bridge joint on the two ends of the battery 43,44 that has brace 57a and pill 57c, but because it is identical polarity with the housing of battery 43,44, even so when the outer pipe of battery 43,44 split, battery can short circuit yet.And, by means of the insulating tape 58 that is double-faced adhesive tape, can easily wiring end sheet 54b, 57c accurately be positioned at the pre-position.
Figure 11 is the stereogram according to the packed cell of the 3rd embodiment, show in order to fix the another kind of structure of two cylinder bodily form batteries 43,44, two batteries 43,44 are in parallel and be arranged on preposition relative to each other, so that anodal and negative terminals each other and put on the same level at battery one end place.In this case, two batteries 43,44 not cover are gone up outer tube, but give same numeral as shown in Figure 9, this is because they have identical functions and size, the battery 43,44 of manufacturing step these no sheaths of acquisition before selling on the market of battery that can be by being covered with outer label usually.
Fixing and the bindiny mechanism of battery comprises an anodal connecting terminal plate 130, negative pole connecting plate 131 and an insulating cap 132.Anodal connecting terminal plate 130 has brace 130a, the 130b that is connected to positive terminal 43a, the 44a of every batteries 43,44 by spot welding, be formed on a wiring end sheet 130d on one of them brace 130a and an interconnection line 130e who is used to be electrically connected two brace 130a, 130b by means of a bend 130c.Interconnection line 130e is covered with an insulation and covers sleeve pipe.Negative pole connecting plate 131 is simple conductive sheet metals.Insulating cap 132 is used for preventing the short circuit between two batteries 43,44.
Battery 43,44 is respectively arranged with an insulation resin cap 132 at the contiguous place of outer peripheral edges each positive terminal 43a, 44a that is installed in battery container, two batteries are arranged in parallel, and their each positive terminal 43a, 44a and negative terminals 43b, 44b face are in the opposite direction.The battery container of the insulating cap 132 contact adjacent cells of every batteries 43,44.Then this of anodal contiguous wiring end plate 130 is welded in brace 130a, 130b point on each positive terminal 43a, 44a of battery 43,44, to obtain being electrically connected between positive terminal 43a, the 44a.Negative pole connecting plate 131 is attached to battery 43,44, does not cover its battery container of outer tube with bridge joint, is electrically connected negative terminals 43b, 44b by battery container thus.Negative pole connecting plate 131 can fix in battery container by welding, soldered or with the bonding of electroconductive binder.At last, wiring end sheet 130d comes with overlapping brace 130a in bend 130c bending, and the spot welding vestige that is thus connected among the sheet 130a is covered by wiring end sheet 130d.
Adopted this fixing and bindiny mechanism, just can be at grade with positive pole and negative terminals setting, will be set parallel to each other simultaneously and its terminals towards opposite no sheath battery 43,44 parallel connections.That is, wiring end sheet 130d is as positive terminal, and negative terminals is the negative terminals 43b of a battery 43.
Figure 12 is the stereogram according to the packed cell of the 3rd embodiment, show in order to fix the another kind of structure of two cylinder bodily form batteries 43,44, two batteries 43,44 are arranged in parallel at preposition place toward each other, so that anodal and negative terminals each other and put on the same level at battery one end place.Two batteries 43,44 in this structure are covered with an outer tube.Fixing and the bindiny mechanism of this battery comprises an anodal connecting terminal plate 130 same as described above and a negative pole connecting terminal plate 133, and negative pole connecting terminal plate 133 comprises a pair of rectangle brace 133a, the 133b that connects by means of a sheet of interconnect 133c.
43, the 44 parallel settings of two batteries, their each positive terminal 43a, 44a and negative terminals 43b, 44b face are in the opposite direction.Brace 130a, the 130b of anodal connecting terminal plate 130 is connected to positive terminal 43a, the 44a of every batteries 43,44 by spot welding, to be electrically connected positive terminal 43a, 44a.Then, four positions that this of negative pole connecting terminal plate 133 is welded in peripheral region to brace 133a, 133b by point are connected in each negative terminals 43b, 44b of battery 43,44, to be electrically connected negative terminals 43b, 44b.At last, the wiring end sheet 130d of anodal connecting terminal plate 130 is curved coming with overlapping brace 130a at bend 103c place, and the spot welding vestige that is thus connected among the sheet 130a is covered by wiring end sheet 130d.The brace 133a of negative pole connecting terminal plate 133 does not need to hide, because spot welding is to carry out in the position at four angles of square brace 133a, therefore when being assembled into packed cell, the vestige of spot welding is not exposed to the outside.
Adopted this fixing and bindiny mechanism, just can will play two wiring end sheet 130d of anodal and negative terminals effect and 133a setting at grade, will be set parallel to each other simultaneously and two batteries, 43,44 parallel connections of its terminals switched in opposite.Because two batteries 43,44 all are covered with outer tube in this mechanism, the interconnection line 130e of anodal connecting terminal plate 130 need not cover insulating material.
Below describe the structure according to the packed cell of the 3rd embodiment, in this packed cell, two batteries 43,44 use above-mentioned any fixing and bindiny mechanism to be fixed into parallel connection.By way of example, will explain by the first fixing a kind of situation that two batteries 43,44 is linked together with bindiny mechanism.In parallel and two batteries 43,44 that be fixed together are installed on the framework 61, as shown in figure 13, framework 61 is to form with an ABS resin, and the outer label 62 of an electric insulation surrounds on the battery, has finished the packed cell 63 of the parallel connection shown in Figure 14 A-14C thus.
Similar with the framework 20 among first embodiment, framework 61 comprises oval-shaped first end face lid 64, be roughly the shape of letter b and have pair of terminals mouth 68,69 and be positioned at the one second end face lid 67 of the recess 65 in the middle of the one side, connection is to separate with cylinder bodily form battery 43,44 respective length and a connecting rod 70 of a middle side part of vis-a-vis each end face lid 64,67, and at the opposite side of connecting rod 70, be parallel to the retention tab 71 that connecting rod 70 extends from the middle part of a side of first end face lid 64, all these parts are integrally formed.
Except these parts, framework 61 also be included in the end of downside of retention tab 71 outstanding one separate protuberance 72, from separate one first supporting slice 73 that protuberance 72 extends and be parallel to connecting rod 70, from outstanding one second supporting slices 74 of recess 65 towards the first end faces lid 64 of second end face lid 67 and at the outstanding shim 77 of most proximal end of the downside of retention tab 71, all these parts are all integrally formed.Connecting rod 70 has roughly trapezoidal cross section, so it can fit in two cylinder bodily form batteries (downside among the figure) in the formed cavity of a side.The retention tab 24 of the framework 20 among retention tab 71 to the first embodiment is thin, and it is separated protuberance 72 and has roughly trapezoidal cross section, so it can fit in two adjacent cylinder shape batteries in the formed cavity of opposite side (upside among the figure), as shown in Figure 14B.
Simultaneously, outer label 62 has a length and the one enough wide width longer slightly than the length of framework 61, with the whole surface that holds framework 61 and with 43,44 clampings of two batteries within it.Outer label 62 be with the film of thermo-responsive or thermal contraction for example PET make, and the opposite avris of the position between the retention tab 71 and first supporting slice 73 is provided with slit 78.
Two batteries 43,44 fixing with parallel connection are installed on the framework 61 by being inserted between connecting rod 70 and the retention tab 71, and the brace 57b of negative pole connecting terminal plate 57 is towards framework 61, as shown in figure 13.At this moment, when battery 43,44 was pushed into, they upwards promoted first supporting slice 73 and retention tab 71 as shown by arrows, caused first end face to cover 64 sidewise bucklings, and retention tab 71 is distortion a little upwards.If first supporting slice 73 is made so longly shown in chain-dotted line, it can present enough elasticity with outside warpage.
Two batteries 43,44 are installed between the two ends cover 64,67 smoothly thus.Have in the formed cavity up and down of the separation protuberance 72 of trapezoid cross section and outer peripheral edges that connecting rod 70 fits in two batteries 43,44 respectively.Therefore, battery 43,44 is clipped in from upper and lower sides to be separated between protuberance 72 and the connecting rod 70, is clamped in the pre-position toward each other in the framework 61 thus.And second supporting slice 74 prevents that thus accident is short-circuited therebetween between the positive pole and negative terminals sheet 54b, 57c of battery.
Outer label 62 with the insulating resin film manufacturing holds battery 43,44 and framework 61, after this blows thereon on the downside with about 150 ℃-200 ℃ hot-air, to shrink and to adapt to the outer surface of battery 43,44 and framework 61.Then roll battery 43,44 from two avris (not shown), with smooth fold or bubble (air-babble bosses) with roller.Thus, two batteries 43,44 firmly fix by outer label 62 with framework 61 is in the same place, and has finished packed cell 63.In this packed cell 63, the positive pole that connects positive terminal 43a, the 44a of two cylinder bodily form batteries 43,44 connects wiring end sheet 54b and is exposed to the outside with the negative pole connection wiring end sheet 57c that is connected negative terminals 43b, 44b by each Wiring port 68,69 in second end face lid 67, can be connected in the terminals of an electrical equipment.
According to above-mentioned packed cell 63, two batteries 43,44 can link together by a simple process step of using positive pole and negative pole connecting terminal plate 54,57 and insulating tape 58, all these parts are used member body plan simply cheaply, even the battery parallel connection, anodal and negative terminals sheet 54b, 57c can be provided with at grade.On the contrary, in traditional packed cell of parallel connection, the positive pole and the negative terminals of two batteries are provided with wiring, and electric wire is covered with resin or thermal contraction casing tube.And member and external terminal are provided with respectively, and its internal structure is relatively complicated thus.
And, battery 43,44 parts are exposed in the packed cell 52,53 of first and second embodiment, in this embodiment, outer label 62 holds the whole surface of battery 43,44 and framework 61, wherein has and the indenture 66 in recess 65 corresponding cross sections is formed in the part between the terminal of retention tab 71 and second end face lid 67.Can form this indenture 66 by means of a pair of supporting slice 73,74, supporting slice 73,74 is arranged on the position of the end that can support outer label 62.The both sides of the edge of outer thus label 62 can be overlapping, enables to adhere to by blowing hot-air simply, just need not resemble among first or second embodiment apply adhesive on the whole surface of label 51 outside.
Above-mentioned packed cell 63 can be configured to two kinds of different types, uses the 1.5V output voltage and the 3V output voltage that uses two 3V batteries of the battery of two 1.5V.In order to the different depth of the present indenture 66 of the mark sheet of distinguishing these different output voltage specifications and the form of length.Particularly, the indenture 66 in the packed cell 63 of 1.5V output voltage specification is made deeplyer than the indenture of the packed cell of 3V output voltage specification and is shorter, and the thickness of two types packed cell is identical.Below will explain two types packed cell and use relation between the battery case of electrical equipment of this packed cell.
Figure 15 shows the stereogram of the battery case 80 of packed cell 63 and an electrical equipment 79.The shape of the battery patchhole 81 of battery case 80 is consistent with the external structure in the cross section of battery 63, and it is identical for two types packed cells.Positive pole contacts the end that terminals 82,83 are arranged on the inside of battery case 80 with negative pole, be connected wiring end sheet 54b, 57c with negative pole with the positive pole with the packed cell of giving prominence to by Wiring port 68,69 63 and be electrically connected.Also be provided with a guide rail 84 in the inside of battery case 80, guide rail 84 has roughly trapezoidal cross section, and its degree of depth and length is corresponding to the indenture 66 of packed cell, and extends towards battery patchhole 81 between terminals 82,83.
If the packed cell of 3V output voltage specification is inserted in the electrical equipment 79 that needs the 1.5V packed cell mistakenly, second end face lid 67 with recess 65 more shallow than the concave depth of 1.5V packed cell leans the end of guide rail 84, prevents that thus packed cell is inserted in the battery case 80.Therefore the packed cell of 3V output voltage can not be inserted in the electrical equipment that needs the 1.5V power drives, and the user can easily recognize mistake, will stop its installation attempt immediately.Can prevent definitely that electrical equipment is owing to the misuse of 3V packed cell is damaged.
On the other hand, if the packed cell of 1.5V output voltage specification is inserted in the electrical equipment 79 that needs the 3V packed cell mistakenly, when the separation protuberance 72 contact guide rails 84 of the end of the retention tab 71 that is positioned at packed cell terminal, the guide rail 84 longer slightly than the length of the battery case 80 that is used for the 1.5V packed cell can stop packed cell.Therefore packed cell can not be inserted in the battery case 80 fully.So the packed cell of 1.5V output voltage can not be installed in the electrical equipment that needs the 3V power drives, the user can easily recognize mistake, and stops its installation attempt immediately.Can prevent the trouble that electrical equipment can not normal operation thus definitely.In addition, above-mentioned packed cell all has the feature that prevents reverse insertion, because they are not provided with recess 30 at its first end face lid 64, therefore are merely able to cover 67 1 sides from second end face they are inserted.
In addition, in electrical equipment shown in Figure 15 79, its driving power is 3V, and another contacts the inboard that terminals 88,89 are arranged on the lid 87 of battery case 80 to positive pole with negative pole.This makes it possible to replace with two joint 1.5V dry cells 90 packed cell of 3V parallel connection.That is, two joint dry cells 90 can be inserted in the battery case 80 with the layout shown in the imaginary line in scheming, 87 sealings of battery patchhole 81 usefulness lids.Then the connect dry cell 90 of two joint 1.5V produces the driving voltage of 3V thus.
Figure 16 shows the stereogram of a manufacturing technology steps of a modification, the packed cell 91 of the packed cell 63 of the 3rd embodiment, and Figure 17 is the cross section along this packed cell 91.Difference between the packed cell 63 of this packed cell 91 and the 3rd embodiment is that two batteries 43,44 and framework 61 are coated with two independent outer labels 92,93.It is identical with the 3rd embodiment with the structure of two batteries in parallel and structure that they are installed in the framework to use anodal and negative pole connecting terminal plate 54,57 and insulating tape 58 to fix.
First outer label 92 usefulness and the 3rd embodiment China and foreign countries label 62 identical materials are made, for example the thin-film material by the thermal contraction that makes PET accept to extend to obtain.Similar to the outer label 51 among first and second embodiment, the first outer label 92 forms square convex shape, and a part corresponding with the part between the terminal of retention tab 71 and second end face lid 67 has the width littler than other parts.On the other hand, the second outer label 93 is to make with the PET that non-heat-shrinkage material does not for example extend, and form square, to cover battery 43,44 not by the part of first outer label 92 coverings.Therefore, this packed cell 91 has the outer label of an indenture 66, the second 93 attached to this, and all the other outer surfaces of packed cell are covered by the first outer label 92, as shown in figure 17.
Consider its integrality,, preferably hold the whole surface of packed cell with the outer label 62 of thermo-responsive or thermal contraction as in the 3rd embodiment.But, if packed cell remains in about 100 ℃ high temperature air, the thermal contraction meeting of outer label 62 is quickened, and existing danger is, it is smooth that outer label 62 in the indenture 66 may be separated and become with battery surface, as use for purpose relatively shown in two chain-dotted lines among Figure 17.Because the distortion of outer label, indenture 66 may disappear, and in this case, just do not had to prevent to misapply the feature of packed cell, even packed cell can not be inserted in the corresponding battery box 80.
With above-mentioned opposite, even packed cell is in about 100 ℃ high temperature air, the indenture 66 of packed cell 91 also can be kept intact, because the second outer label 93 can not be out of shape.In addition, if do not use above-mentioned non-thermal contractive label, a material that shrinks under predetermined temperature also can be used for label 93 outside second in the packed cell 91, the second outer label 93 can be used as the temperature sensor of packed cell 91, the detectable thus packed cell that has been placed in the predetermined temperature environment.
Figure 18 illustrates use at the stereogram according to the battery container 94 the packed cell of the fourth embodiment of the present invention from an end, and Figure 19 is the stereogram that same battery container 94 is shown from the other end.Battery container 94 has first and second end faces lid 97,98, diapire 99, separates protuberance 100 and sidewall 101, and these parts are all used for example integrally formed shape that can hold two cylinder bodily form batteries within it of ABS resin.This structure is basic identical with the battery container 31 of the packed cell 53 that is used for second embodiment, difference is that this butted line port one 04,107 forms rectangle, and this battery container 94 has a shim 108 that is arranged in second end face lid 98 and is arranged in the diapire 99 a pair of through hole 109,109 at diagonal angle each other.
At the horizontal middle part of diapire 99, the separation protuberance 100 of formed similar guide rail longitudinally projects upwards.Diapire 99 has length and width, so that two be arranged in parallel and the cylinder bodily form battery of closely contact can be placed on the both sides of separating protuberance 100.Separate protuberance 100 and have trapezoidal cross section, so it can fit in the outer surface of two batteries that closely contact in the formed cavity of downside.Cylinder bodily form battery is clamped in the both sides that have separation protuberance 100 and two side 101 respectively thus.
First end face lid 97 forms the roughly shape of alphabetical D, and it can cover each other the closely both ends of the surface of contact and juxtaposed two adjacent cylinder shape batteries, and is provided with the step portion 102 in order to a wiring end plate of admitting and keeping after this will describing.It is 97 similar that the shape of second end face lid 98 and first end face cover, can cover the both ends of the surface of two cylinder bodily form batteries, it has the profile corresponding to one longer side (upside among the figure) with two cylinder bodily form batteries, and has a recess 103 that is formed on longer middle side part.Second end face lid 98 also has the Wiring port 104,107 of a pair of rectangle, and the center that this Wiring port 104,107 is positioned at the end face that is placed on two cylinder bodily form batteries on the diapire 99 offsets downward and corresponding position.Compare with the framework 61 of the 3rd embodiment, the distinguishing characteristics of this battery container 94 is that first and second end faces lid 97,98 is formed with square rim 110,111, and this square rim 110,111 is outstanding in the end of the longer side in rectilinear bottom of end face lid respectively.
The upper surface of the separation protuberance 100 at the middle part between the Wiring port 104,107 of shim 108 from the inboard of second end face lid 98 extends straight up.This is formed in the diapire 99 opposite end on the both sides of separating protuberance 100 to through hole 109 place, diagonal angle, these are set is in order to admit the annular protuberance in the hermetic unit that is installed in the battery in this battery container 94, after this this will describe.
Figure 20 is the stereogram of a manufacturing technology steps that the packed cell of the 4th embodiment that uses above-mentioned battery container 94 is shown, and Figure 21 is the end view that a packed cell of finishing 112 is shown.Battery container 94 is used for body plan one packed cell 112, wherein two cylinder bodily form lithium batteries, 113,114 series connection.Particularly, the cylinder bodily form lithium battery 113,114 of use in this packed cell 112 has outwards outstanding annular protuberance 113c, 114c, and this annular protuberance 113c, 114c are formed by its hermetic unit on the outer surface at the contiguous place of positive terminal 113a, 114a.
Manufacturing technology steps with the packed cell 112 of battery container 94 body plans is below described.At first, two cylinder bodily form lithium batteries 113,114 are arranged to the tight contact of keeping to the side in the limit, their longitudinal axis is parallel to each other, and they each is anodal and negative terminals 113a, 114a, 113b, 114b be arranged to opposite each other so that their both ends of the surface are all located at grade.Two identical circular wiring end plates 117,117 are welded on respectively on the negative terminals 114b of the positive terminal 113a of battery 113 and battery 114 adjacent to each other by the spot welding of using welding rod (not shown), and the spot-welded on of the brace 118 of rectangle by using welding rod and place the two ends of the positive terminal 114a and the negative terminals 113b of the battery other end.Thus, two batteries 113,114 are connected, and link together with the relation of preposition each other.
Be welded on each identical circle, flat pattern of wiring end plate 117 formation anodal and negative terminals 113a, 114b, so that its manufacturing cost is lower.Can reduce material cost thus.In addition, because circular wiring end plate 117 does not need to be positioned at given position, can finish welding apace.
The battery 113,114 that links together is placed on the diapire 99 of the both sides of separating protuberance 100 in the battery container 94.Before this, a cyanoacrylate adhesive of the non-type that bleaches (non-whitening type) longitudinally is applied to the middle part of diapire 99.When battery 113,114 is inserted in the battery container 94, they bonding and be connected the there.To can not evaporate the cyanoacrylate adhesive of the type that bleaches in battery 113,114 and the process that battery container 94 is connected by using, the infringement of adhesive to the outward appearance of packed cell 112 can prevent to bleach.
After in being inserted into battery container 94, each battery 113,114 is firmly clamped by diapire 99, separation protuberance 100 and sidewall 101.Brace 118 is installed in the end difference 102 in first end face lid 97, and annular protuberance 113c, 114c on each battery 113,114 are installed in the through hole 109, and the battery 113,114 that remains on thus in the battery container 94 becomes more firm.Each wiring end plate 117 is exposed to the outside by terminals perforation 104,107.Be arranged on that the shim 108 between two Wiring ports 104,107 can prevent the short circuit unexpectedly in manufacture process of this butted line end plate 117 in second end face lid 98.
117 of wiring end plates are welded in two positions of the end face of battery 113,114, are welded into from the center of battery shown in Figure 21 to move towards a lateral deviation at Wiring port 104,107 places of second end face lid 98.Therefore, Wiring port 104,107 is fully by 117 sealings of wiring end plate, and the spot welding vestige is covered by second end face lid 98, because they are positioned at the middle part of the end face of battery 113,114 substantially.
Then an outer label 120 thermo-responsive or thermal contraction holds and is bonded on the outer surface of battery container 94 and battery 113,114, has finished a packed cell 112 thus, and wherein two batteries 113,114 are connected and linked together securely.Can easily hold the step of outer label 120, this is because two batteries 113,114 and battery container 94 have passed through absorbent core but separated in advance.If battery 113,114 and battery container 94 are not fixed together each other, the process that holds outer label 120 will be very complicated, must keep two batteries not fall down from battery container 94.
One thermo-responsive or heat-shrinkage material for example PET can be used as outer label 120.Outer label 120 has length and the enough wide width longer slightly than battery container 94, and to hold battery container 94 and two batteries 113,114 mounted thereto, as shown in figure 20, outer label 120 also has square notch 115 at place, four angles.Figure 22 is the stereogram of the battery case 122 of packed cell 112 and electrical equipment 121.As shown in the figure, when holding battery 113,114, the lateral edges of outer label 120 leans each other along the whole length of battery, has formed an indenture 123 at the horizontal middle part of packed cell 112.
In Figure 22, the battery patchhole 124 of battery case 122 has and the corresponding to opening of the cross sectional shape of packed cell 112.One anodal contacts the end that terminals 127,128 are arranged on battery case 122 inside with negative pole, to pass through the positive pole and negative terminals plate 117 electric contacts of Wiring port 104,107 and packed cell 112.In addition, a guide rail 129 is set from the battery patchhole 124 towards battery case 122 between the inner most terminals 127,128, guide rail 129 have one with packed cell 112 in the degree of depth of indenture 123 and the cross section of the corresponding degree of depth of length and length.
Above-mentioned packed cell 112 can come body plan with two joint 3V batteries, to have the 6V output voltage, but can distinguish with the packed cell 52,53 and 63 of above-mentioned first to the 3rd embodiment, because Wiring port 104,107 is arranged on the position at the center of departing from each battery 113,114.Therefore, even this packed cell 112 of 6V output voltage specification is inserted in any electrical equipment as power supply in the 3V packed cell 52,53 and 63 that needs first to the 3rd embodiment mistakenly, wiring end plate 117 will can not be connected to the terminals in the battery case.Therefore, can prevent from electrical equipment to be caused damage because of misuse 6V packed cell.
In addition, its length can not be inserted in the battery case 122 of the electrical equipment 121 that needs the 6V of this embodiment packed cell to the packed cell 52,63 with three embodiment first for the existence of the guide rail 129 that extends battery case 122 whole length makes.And even the packed cell 53 of second embodiment is inserted in the battery case 122 forcibly, the terminals of battery also can not be connected to the terminals of battery case 122 inside.Therefore, under any circumstance, all can prevent to cause producing the trouble of apparatus failure less than the packed cell of 6V because of the misuse output voltage.
If use the cylinder bodily form battery of two joint 1.5V, packed cell 122 can be configured to 3V output voltage specification, if use the cylinder bodily form battery of two joint 3V, then can be configured to 6V output voltage specification.When produce and market has this packed cell 112 of two types of different output voltage specifications, can prevent misuse by the different depth that indenture 123 is set.That is, the degree of depth of the indenture 123 of the packed cell of 6V output voltage specification is set than the depth as shallow of the indenture of the packed cell of 3V output voltage specification.The shape of the indenture 123 of the packed cell 112 that the cross section of guide rail 129 is corresponding every type correspondingly changes.Therefore, can prevent from the 6V packed cell is inserted in the battery case of the electrical equipment that needs the 3V power drives by guide rail 129.
Industrial applicability
As mentioned above, make it possible to by using integrated framework or electricity according to packed cell of the present invention The pond housing remains the preposition relation with a plurality of batteries, has reduced thus number of components, has simplified assembling Process. Total production cost can be reduced, and the output of packed cell can be increased. Therefore the present invention is in the group formula In the manufacturing field of battery the application future is arranged.

Claims (16)

1. packed cell, described packed cell be with a plurality of batteries series connection or be connected in parallel and fixing all-in-one-piece,
It is parallel to each other that described battery is configured to their axis, the located adjacent one another or contact of their outer surface, and each at least at one end adjacent electrode terminal is electrically connected with brace, remains in the battery case under this state,
Described battery case has: the pair of end cover, and this opposite end cover covers the whole surface of the end face at adjacent cell two ends respectively; At least one connecting portion, described connecting portion connects described pair of end cover respect to one another with the distance corresponding to battery length,
Described battery is vertically held by the end face lid at it and is clamped, and is clamped by described connecting portion in its transverse end, be maintained at thus in the described battery case,
One outer label thermo-responsive or thermal contraction is reeled and is bonded on the outer surface of battery case and each battery,
It is characterized in that:
The pair of end cover and the described connecting portion of described battery case are integrally formed,
The shape of one of them end face lid ovalisation or alphabetical D,
Another end face lid then becomes the shape of letter b, and has the corresponding to recess of profile with each end face of battery, and this recess has the degree of depth that the output voltage specification according to packed cell changes.
2. packed cell as claimed in claim 1 is characterized in that: described battery case is a framework, and described connecting portion is a connecting rod.
3. packed cell as claimed in claim 2, it is characterized in that: cover at described one of them end face and be formed with a retention tab, the length of described retention tab is shorter than described connecting portion, and be parallel to the outstanding setting of described connecting portion relative to one another with described connecting portion, described one of them end face lid has a thin portion, and the brace that is connected in battery one end is installed in the thin portion; Described another end face lid has a plurality of Wiring ports, so that the electrode terminal of battery is exposed to the outside; Described connecting rod and retention tab all have one can make them fit in cross section in the cavity between the juxtaposed battery; The length of retention tab is 1/3 to 1/2 of connecting rod.
4. packed cell as claimed in claim 3 is characterized in that: described retention tab has a length that changes according to the output voltage specification of packed cell.
5. packed cell as claimed in claim 2, it is characterized in that: all batteries are arranged to identical direction, their positive terminal is also put together and by being welded on a positive strap electric interconnection of positive terminal, their negative terminals is by being welded on a negative pole brace electric interconnection of negative terminals; One insulating tape is attached on the middle brace; One positive terminal sheet is electrically connected in positive strap; A negative terminals sheet that has with positive terminal sheet same thickness is electrically connected in the negative pole brace by a cross tie part; Positive terminal sheet and negative terminals sheet are bonded on the insulating tape that is attached in the positive strap.
6. packed cell as claimed in claim 5, it is characterized in that: the positive terminal sheet is formed in the positive strap, to enable relative positive strap bending, and negative terminals sheet and negative pole brace interrelate in following a kind of mode, be that cross tie part vertically extends from the negative pole brace, and the negative terminals sheet is formed on the end of cross tie part, with its bending relatively; Positive terminal sheet and negative terminals sheet are crooked respectively, can be bonded on the insulating tape that adheres to positive strap.
7. packed cell as claimed in claim 6 is characterized in that: be applied with adhesive on the both sides of insulating tape in advance.
8. packed cell as claimed in claim 2, it is characterized in that: each battery is arranged to opposite direction, their each positive terminal is by the brace electric interconnection each other of the positive terminal connector of each positive terminal of welding battery, described brace is arranged on the both ends of an interconnection line that is electrically connected with it, and each negative terminals of battery is welded in the negative terminals of each battery by the both ends with the negative terminals connector and is electrically connected each other.
9. packed cell as claimed in claim 8 is characterized in that: each battery does not cover outer tube, and the both ends of negative terminals connector all are welded on the outer surface of battery case of each battery.
10. packed cell as claimed in claim 3, it is characterized in that: described framework has: first supporting slice of end that is formed on the retention tab of described one of them end face lid, this first supporting slice is step-like and thinner than retention tab, so that fit in the cavity between the adjacent cell; And relative first supporting slice is formed on one second supporting slice that described another end face covers, so that fit in the cavity between the adjacent cell, one outer label thermo-responsive or thermal contraction is reeled and is bonded on the whole outer surface of battery and framework, outer label is formed with slit, so that the profile of it and battery and framework is suitable, and make end with the retention tab from described one of them end face lid of battery to the part of described another end face lid corresponding outside the part of label supported by first supporting slice and second supporting slice.
11. packed cell as claimed in claim 2 is characterized in that: the first outer label of heat-shrinkage material is reeled and is bonded on battery and the outer surface of framework except that the part of extremely described another end face lid of end of the retention tab from described one of them end face lid; The second outer label (93) of non-heat-shrinkage material reel and the end that is bonded in the retention tab from described one of them end face lid to this part of described another end face lid.
12. packed cell as claimed in claim 1 is characterized in that: described battery case also has
One diapire, it is used for connecting described pair of end cover respect to one another with the distance corresponding to battery length; And one separate protuberance, and it is vertically outstanding on diapire along it, and all end face lids, diapire and separation protuberance are integrally formed, wherein:
Described battery is placed on the diapire along separating protuberance, and is clamped by the end face lid at its vertical end, is maintained in the battery case thus.
13. packed cell as claimed in claim 12, it is characterized in that: described another end face lid has a plurality of Wiring ports, so that the electrode terminal of battery is exposed to the outside, separates protuberance and have and to make it fit in a cross section in the cavity between the juxtaposed battery.
14. packed cell as claimed in claim 12 is characterized in that: described two end faces lid has a straight sides, and they are connected to each other by diapire at this, and the straight sides of described end face lid is formed with square protuberance at its two ends.
15. packed cell as claimed in claim 12 is characterized in that: battery is arranged to opposite direction; The end that identical shaped circular wiring end plate is welded in respectively at battery departs from the juxtaposed each other electrode terminal in position at battery center, and the juxtaposed each other electrode terminal of the other end of battery by be welded on the there the brace electric interconnection; Described another end face lid of battery case has at the position formed non-circular Wiring port relative with each circular wiring end plate.
16. packed cell as claimed in claim 15 is characterized in that: a shim is formed between the Wiring port.
CNB008001251A 1999-02-01 2000-01-31 Battery pack Expired - Fee Related CN1174500C (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP2355099 1999-02-01
JP23550/1999 1999-02-01
JP36366699A JP3863693B2 (en) 1999-02-01 1999-12-22 Pack battery
JP363666/1999 1999-12-22

Publications (2)

Publication Number Publication Date
CN1294761A CN1294761A (en) 2001-05-09
CN1174500C true CN1174500C (en) 2004-11-03

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US (1) US6440601B1 (en)
EP (1) EP1070357B1 (en)
JP (1) JP3863693B2 (en)
CN (1) CN1174500C (en)
DE (1) DE60019498T2 (en)
WO (1) WO2000046865A1 (en)

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DE60019498D1 (en) 2005-05-25
EP1070357B1 (en) 2005-04-20
US6440601B1 (en) 2002-08-27
EP1070357A1 (en) 2001-01-24
DE60019498T2 (en) 2006-02-23
JP3863693B2 (en) 2006-12-27
WO2000046865A1 (en) 2000-08-10
JP2000294210A (en) 2000-10-20
CN1294761A (en) 2001-05-09

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